Home / 143,197.56-197,617.59-79,541.28

Finding the Fourth Proportional to 143,197.56, 197,617.59 and 79,541.28

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Solution

The fourth proportional to 143,197.56, 197,617.59 and 79,541.28 is: 109,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,197.56 : 197,617.59 = 79,541.28 : x
  2. Step 2: Convert to fraction form
    143,197.56/197,617.59 = 79,541.28/x
  3. Step 3: Cross multiply
    143,197.56x = 197,617.59 × 79,541.28
  4. Step 4: Simplify right side
    143,197.56x = 15,718,756,059.12
  5. Step 5: Solve for x
    x = 15,718,756,059.12/143,197.56
  6. Step 6: Final answer
    x = 109,769.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.